On April 25, 2026, the Directorate for Standards, Metrology and Quality of Vietnam （STAMEQ） officially implemented new regulations for sensor imports, requiring all sensor products entering the country to be accompanied by bilingual Chinese-English test reports issued by VILAS-accredited laboratories （covering RoHS, EMC, and safety items）. This policy directly affects sensor export enterprises targeting the Vietnamese market, with particularly close attention required in segmented fields that rely on sensor integration, such as electronic components, industrial automation, automotive electronics, and IoT terminal manufacturing. The new regulations have already caused substantive delays in customs clearance, creating real pressure on order delivery stability.

Event Overview

The Directorate for Standards, Metrology and Quality of Vietnam （STAMEQ） has implemented new regulations effective April 25, 2026: all sensor products imported into Vietnam must, at the time of customs declaration, simultaneously submit bilingual Chinese-English test reports issued by laboratories accredited by Vietnam VILAS, with test items explicitly including RoHS, EMC, and electrical safety. At present, only 7 laboratories in China have obtained VILAS authorization and mutual recognition qualifications; most other exporters generally need to send samples to local VILAS-accredited laboratories in Hanoi for testing, resulting in an average customs clearance extension of 5–7 working days.

Which Segments Will Be Affected

Direct Trading Enterprises

Foreign trade companies engaged in sensor exports to Vietnam are directly constrained by the language, qualification, and regional requirements for test reports. As most have not established stable cooperation channels with VILAS mutually recognized laboratories, they need to temporarily coordinate processes such as sample submission, translation, and review, which lengthens the customs clearance cycle for each batch and increases contract performance risks.

Processing and Manufacturing Enterprises

End-product manufacturers that use sensors as key components （such as industrial PLC manufacturers, in-vehicle sensor module factories, and smart instrument manufacturers） face slow upstream supply response issues. If their Vietnamese customers require sensor testing documents to accompany the complete machine, manufacturers must request compliant reports from suppliers in advance, otherwise customs clearance for the complete machine will be held up.

Supply Chain Service Enterprises

Third-party institutions providing services such as customs declaration agency, testing agency, and logistics coordination need to readapt to new operational nodes such as VILAS report format review, Chinese-English consistency verification, and local sample submission coordination. Enterprises whose service capabilities have not yet covered the VILAS mutually recognized laboratory network may face pressure from clients shifting their orders elsewhere.

Channel Distribution Enterprises

Sensor distributors with distribution or warehousing centers in Vietnam are seeing the original flexible operating space of “arrive at port first, supplement documents later” narrow. The new regulations require test reports and goods to be declared simultaneously, forcing them to lock in testing schedules in advance, while inventory turnover and allocation rhythms need to be adjusted accordingly.

What Key Points Should Relevant Enterprises or Practitioners Focus On, and How Should They Respond at Present

Confirm Whether Your Partner Laboratory Is on the VILAS Mutual Recognition List

Immediately verify whether the current Chinese testing institution you entrust is among the 7 VILAS mutually recognized laboratories announced by STAMEQ. If it is not on the list, a backup plan should be initiated—prioritizing connection with laboratories that have already obtained mutual recognition, or evaluating the timeliness and cost feasibility of local testing in Hanoi, so as to avoid delivery delays caused by temporary sample submission.

Organize the List of Sensor Categories and Technical Parameters for Shipments to Vietnam

Focus on the applicability boundaries of the three categories of test items: RoHS, EMC, and safety, and identify whether all models require full-item testing （for example, some low-power, non-contact sensors may be exempt from EMC）, so as to reduce redundant testing costs and time consumption. It is recommended to manage testing strategies by SKU tiering.

Define Testing Responsibility in Advance in Contracts and Orders

Reassess trade terms with Vietnamese buyers to clearly define the provider of the test report, the language version, issuance timeline, and cost-bearing method; in procurement agreements, supplement domestic sensor suppliers with clear obligations for VILAS report delivery, so as to avoid unclear responsibilities when customs clearance is blocked.

Establish a Coordinated Response Mechanism for Testing-Logistics-Customs Declaration

Incorporate the testing cycle （including sample shipment, testing, and Chinese-English report generation） into the overall export plan, and share key milestone schedules with freight forwarders and customs brokers; for high-priority orders, a buffer period of 1–2 working days can be reserved to deal with common exceptions such as report format rejection and revision requests.

Editorial Viewpoint / Industry Observation

Observably, this policy is not an isolated technical adjustment, but one of Vietnam’s systematic actions to strengthen imported product quality traceability and regulatory capability. What is more noteworthy at present is the rigidity of its enforcement—STAMEQ has clearly made report qualifications and language a precondition for customs clearance, rather than a matter of random inspection or post-event correction, meaning that the policy has entered the stage of substantive implementation. Analysis shows, in the short term, the impact is concentrated on process efficiency and compliance costs, while in the medium to long term it may drive the expansion of the China-Vietnam testing mutual recognition mechanism, though there is still no official signal regarding the pace or scope of such expansion. The industry needs to continue observing whether the policy will later expand to other categories of electronic components, and whether VILAS will publish a dynamically updated list of mutually recognized laboratories.

Conclusion:
The new regulations on sensor imports in Vietnam mark a further refinement and normalization of its technical trade measures. At present, this means exporters need to deeply embed testing compliance into the front end of the supply chain, rather than treating it merely as an action at the customs clearance back end. It is more appropriately understood as a structural adaptation requirement brought about by increased regulatory granularity, rather than a short-term disruption. The key to a rational response lies in using actions with certainty （such as qualification verification, document preparation in advance, and responsibility clarification） to hedge against uncertain risks.

Information source note:
Main source: April 2026 announcement by the Directorate for Standards, Metrology and Quality of Vietnam （STAMEQ）;
Items requiring continued observation: dynamic updates to the VILAS mutually recognized laboratory list, the specific referenced versions of testing standards for RoHS/EMC/safety items, and whether the scope will later expand to other sensor-related categories （such as actuators and transmitters）.